/Engine/Source/Runtime/Core/Public/Serialization/StructuredArchiveSlots.h
[TOptional](API\Runtime\Core\IO\TOptional)< [FStructuredArchiveSlot](API\Runtime\Core\Serialization\FStructuredArchiveSlot) > TryEnterField ( [FArchiveFieldName](API\Runtime\Core\Serialization\FArchiveFieldName) Name, bool bEnterForSaving )